Physics, 28.06.2019 05:30, unicornsflyhigh
The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to it. to see just how rapidly the windows transfer heat by conduction, calculate the rate of conduction in watts through a 3.0-m2 window that is 0.635 cm thick (1/4 in) if the temperatures of the inner and outer surfaces are 5.0Âșc and â10.0Âșc , respectively. this rapid rate will not be maintainedâthe inner surface will cool, and even result in frost formation.
Answers: 1
Physics, 21.06.2019 21:00, jjxt126
A150 w lamp emits light of wavelength 590 nm uniformly in all directions. what is the photon flux (photons per unit area per unit time) on a small screen at a distance 2.3 m from the lamp? assume the photons are uniformly distributed over the surface of a sphere of radius 2.3 m.
Answers: 2
Physics, 22.06.2019 08:30, bazsinghnagoke
An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?
Answers: 1
Physics, 22.06.2019 20:50, dondre54
Asquare 1m x 1m plate is shown below. all four of its edges are kept at 0 co. at t=0the temperature distribution is given by: y xtï°ï°sins n75)=.a) using separation of variables determine the temperature distribution t(x, y,t)along the plate at any time t. b) discretize the heat conduction equation ï·ï·ïžï¶ï§ï§ïšïŠï¶ï¶+ï¶ï¶=ï¶ï¶22222 txtïŹusing a second-order centered difference scheme for the two second derivatives and a first-order forward euler scheme for the first derivative. using von neumann stability analysis, determine the stability criterion for the proposed discretization scheme in terms of ïŹ, hand ït. solve for the maximum allowable time step ïtmax
Answers: 1
The rate of heat conduction out of a window on a winter day is rapid enough to chill the air next to...
Mathematics, 02.09.2019 05:30
Mathematics, 02.09.2019 05:30
English, 02.09.2019 05:30
Social Studies, 02.09.2019 05:30
Mathematics, 02.09.2019 05:30
Physics, 02.09.2019 05:30